ACT数学19道单选题基础练习（2）

　　1.据留学360介绍， Simon arrived at work at 8:15 A.M. and left work at 10: 30 P.M. If Simon gets paid by the hour at a rate of $10 and time and ? for any hours worked over 8 in a day. How much did Simon get paid?

　　A. $120.25

　　B. $160.75

　　C. $173.75

　　D. $180

　　E. $182.50

　　2. Grace has 16 jellybeans in her pocket. She has 8 red ones, 4 green ones, and 4 blue ones. What is the minimum number of jellybeans she must take out of her pocket to ensure that she has one of each color?

　　A. 4

　　B. 8

　　C. 12

　　D. 13

　　E. 16

　　3. If r = 5 z then 15 z = 3 y, then r =

　　A. y

　　B. 2 y

　　C. 5 y

　　D. 10 y

　　E. 15 y

　　4. If 300 jellybeans cost you x dollars. How many jellybeans can you purchase for 50 cents at the same rate?

　　A. 150/x

　　B. 150x

　　C. 6x

　　D. 1500/x

　　E. 600x

　　5. Lee worked 22 hours this week and made $132. If she works 15 hours next week at the same pay rate, how much will she make?

　　A. $57

　　B. $90

　　C. $104

　　D. $112

　　E. $122

　　6. If 8x + 5x + 2x + 4x = 114, the 5x + 3 =

　　A. 12

　　B. 25

　　C. 33

　　D. 47

　　E. 86

　　7. You need to purchase a textbook for nursing school. The book cost $80.00, and the sales tax where you are purchasing the book is 8.25%. You have $100. How much change will you receive back?

　　A. $5.20

　　B. $7.35

　　C. $13.40

　　D. $19.95

　　E. $21.25

　　8. You purchase a car making a down payment of $3,000 and 6 monthly payments of $225. How much have you paid so far for the car?

　　A. $3225

　　B. $4350

　　C. $5375

　　D. $6550

　　E. $6398

　　9. Your supervisor instructs you to purchase 240 pens and 6 staplers for the nurse's station. Pens are purchased in sets of 6 for $2.35 per pack. Staplers are sold in sets of 2 for 12.95. How much will purchasing these products cost?

　　A. $132.85

　　B. $145.75

　　C. $162.90

　　D. $225.25

　　E. $226.75

　　10. If y = 3, then y3(y3-y)=

　　A. 300

　　B. 459

　　C. 648

　　D. 999

　　E. 1099

　　Answer Key

　　1. A

　　2. A

　　3. D

　　4. D

　　5. A

　　6. A

　　7. E

　　8. A

　　9. D

　　10. C

　　11. D

　　12. A

　　13. A

　　14. B

　　15. C

　　16. C

　　17. B

　　18. A

　　19. C